| 摘要 |
PURPOSE: An adjustment system for an optical pickup module is provided to separate a circuit block into many modules, and to install a dedicated module capable of measuring various signals necessary for controlling, so that an operator can exactly perform the controlling. CONSTITUTION: An apparatus block(100) supports an optical pickup(110) and controls each parameter of the optical pickup(110) by an operation of an operator. A servo circuit block(200) composed of many modules performing different functions performs a servo function, to make the optical pickup(110) stably obtain data from a disk(130). The servo circuit block(200) performs a measurement of a control reference signal from the optical pickup(110). A measurer(300) displays the measured signal, to make the operator use the measured signal as the control reference signal.
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